Describe the bug

When exiting the game from a singleplayer world with the mod FastQuit enabled, the game hangs and doesn't close properly. I have to kill the proccess for it to close (it seems that everything gets saved correctly, even if the game hangs).

Modpack version

5.10.3

Launcher

Prism Launcher

Confirm

• This bug report is about an issue with the modpack itself, I have not modified the mods nor added any resource packs. If this is not the case, I know that I should post the issue to modpack's Discord support channel instead.

Additional context

I'm on Fedora Linux 40 KDE, using the build from FlatHub.

Both GameMode and MangoHud enabled.
I have only modified some basic Minecraft settings.

Disabling FastQuit makes the game close normally.

Please send logs of the instance with the issue, then test with only FastQuit (disable all other mods) and see if you can reproduce. Maybe there is a problem with accessing the world by the mod, because you are using a Flatpak...

Sorry for opening this issue; I can't reproduce it anymore.

I tried on a new, completely clean instance of FO and couldn't reproduce the issue. On my original instance, the issue is also no longer occurring after disabling and re-enabling FastQuit.

Closing as invalid.